Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  6363b90bd846a54b3e1c7a37dfa62b255c634c11

Add caption to the interface in place of description

Also include the description on the right side of the page, but the caption
generally is more relevant and so should have the place of honour.

+tests

Change-Id: I512b3dd99207878233d501135b4dda0d0bd9cdd6